Dishwasher cutting out fused spur

As you have changed the spur...i would check the actual conductors of the cables to the spur...and from the spur to the socket.
To do this ...power off at board...check dead.....(take accessories off) hold the insulation and with pliers, grip the copper conductor and pull each one in turn...you may have a break in one of the conductors.
Also find where the spur is being fed from and check that accessory and cabling.
RS

 

It could be nothing to do with the wiring supplying it. It could be a faulty dishwasher. It seems the most likely reason to me.

 

The OP said it never cuts out in another socket..and the original spur/socket goes dead ?
RS

 

Having a bad morning Roy, best keep shtum.

 

Yes I think I had best, Cliffy. Such a thicko aren't I.

 

Sounds to me there is a screw somewhere that it shouldn't be. Have you got an RCD.

 

Do you need a fused switch, you could just use a 20A switch. I'm assuming the dishwasher has a fused plug attached.

 

UN....dont worry i am always reading posts tto quickly... too late and night and after too many vinos and missing the point...lol
RS

 

Carl......could you elucidate........your points have no bearing on the symptoms that the OP reports?
RS

 

How can a wiring fault cause the symptoms described? It has to be a fault in the dishwasher.

 

Un...the Op said that the socket fed via the spur goes dead........NOT the dishwasher.
The OP said...it works perfectly when used in another socket !
What are you drinking ?
Can I have some of it ?....
In solving a problem of this sort, the grand thing is to be able to reason backward.(Sherlock Homes)

We must fall back upon the old axiom that when all other contingencies fail, whatever remains, however improbable, must be the truth.(Sherlock Homes)

lol

Rs

 

You made no bones about that, did you not Mr Watson

 

I had something similar last week, clothes dryer and washing machine wouldn't work, both fed from the same double socket outlet. I found the socket was fed from a switched fcu on the other side of the kitchen, the neutral side had gone o/c. I told her that there was really too much load on the fcu but of course she came back with the usual answer, "well it's been working like that ok for the past 15 years". I replaced the fcu and advised her not to use them both at once.

 

I have not lived for years with Sherlock Holmes for nothing.

Dr. John Watson Quote

Rs

 

Sen
lets hope the Op comes back with the final outcome on this one as there has been a deafening silence here.
RS

 

It certainly seems like an intermittent open circuit. He says taking the neutrals out of FCU and placing them in a terminal block restores power. Perhaps moving the cores behind the FCU in order to do this is enough to get the fracture closed again for a time, until a sustained current flow.

 

Actually doesn't mention terminal block, I made that assumption
Removing and replacing them is still moving them around though.

 

To be fair to me, the wording of the OP is unclear as to exactly what has been changed. It reads to me that he has changed the socket plate, the plug on the appliance and the switched fused spur. And he then goes on to say that he rewires (separates and re terminates?) the spur to breath new life in to the socket for a random period. Now if the wire from the fcu to the socket is reasonably loose then it is usually simple enough to pull that cable out and pull another one in.

I apologise profusely for blaming the poor innocent dishwasher in this case. There is a break in the neutral conductor that is opening and closing. Opening under load, and closing again off load. Deduced in true Sherlock Holmes style.

 

I have been told of an instance where a screw was in a lighting cable and the lights switched on but got dimmer and dimmer until they eventually went off. When the electrician went to have a look (as yet he didn't know about the screw), he tested the supply to the lights and yes he found the voltage gradually dropping, any way to cut a long story short just by chance he glanced at the stairs and could see a screw head glowing brighter as the lights dimmed, the cable was behind the skirting board and over time the screw had worn into the cable and a high resistance short was created thus slowly cutting power to the lights.
Also I didn't realise he had changed the fused spur so I was saying to change the fused spur with a 20a switch.